US PATENT SUBCLASS 182 / 84
.~.~ Movable platform with movable ladder

Current as of: June, 1999
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182 /   HD   FIRE ESCAPE, LADDER, OR SCAFFOLD

82  DF  WALL- OR FLOOR-ATTACHED {7}
83  DF  .~ Wall-mounted platform, with ladder {2}
84.~.~ Movable platform with movable ladder

DEFINITION

Classification: 182/84

(under subclass 83) Device wherein both the platform and the ladder are mounted for movement with respect to the wall.